Multiferroic properties of BiFeO3/BaTiO3 multilayered thin films

Multilayered structures of multiferroic BiFeO3 (BFO) and ferroelectric BaTiO3 (BTO) have been fabricated using pulsed laser deposition (PLO). Ferromagnetic and ferroelectric properties of the multilayered system (BFO/BTO) have been investigated. It could be inferred that the magnetization increases with the incorporation of BTO buffer layer, which indicates a coupling between the ferroelectric and ferromagnetic orders. Vibrating sample magnetometer (VSM) measurements performed on the prepared multiferroic samples show that the magnetization is significantly increased (M-s=56.88 emu/cm(3)) for the multilayer system with more number of layers (four) keeping the total thickness of the multilayered system constant (350 nm) meanwhile maintaining the sufficiently enhanced ferroelectric properties (P-r=29.68 mu C/cm(2)). (C) 2014 Elsevier B.V. All rights reserved.